OmniPreSense OPS242, Руководство пользователя

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OPS-UM-001-C User Manual OmniPreSense Corporation 6
Data Precision – set the number of digits for the data reported.
Command Name R/W Value
F n Decimal Places Write
Set n to the number of decimal places to be
reported. For example, setting to F2 will
report 2 decimal places (ex. 10.35). F0 will
provide the integer value only. Valid values of
n are 0-5.
Sampling Rate/Buffer Size – set these values to control the sample rate of the sensor. This setting
influences the output data and the rate at which the data is reported. The buffer size influences the report
rate and accuracy. A buffer size of 512 will have a report rate between 5-30Hz. The accuracy becomes
worse by a factor of two with a 512-buffer size versus 1024 (Figure 6).
Command Name R/W Value
SI 1K samples/second Write
SV 5K samples/second Write
SX or S1 10K samples/second Write
S2 20K samples/second Write
SL 50K samples/second Write
SC 100K samples/second Write
S> 1024 buffer size Write 1024 samples are collected before processing
S< 512 buffer size Write 512 samples are collected before processing
Figure 6. Buffer Size versus Accuracy
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1,000 5,000 10,000 20,000 50,000 100,000
Acc
u
ra
cy
(m/
s)
Sampling Rate
512 Buffer
1024 Buffer